I have just read about exaclty that John, thanks for the post! I didn't realize that was the case with the boards "unlinked" setting. I did however just read a pretty comprehensive review on the RD600 and like you said does indeed allow separate clockspeeds. I feel like I'm in the same boat I was in when I first upgraded to C2D! It was fairly easy to choose most of the hardware, except for the motherboard and it's still the case now! I have also learned that not all dividers on the 680i are created equal either, some are more stable than others? I've been spending time over at the VR-Zone and XS trying to get some answers to my specific issues but havn't had much luck yet. I wouldnt' have much problem letting the 680i go but only if I can find a better board. Then again this board is still fairly new at the moment and the BIOS can probably stil benefit from another revision so I might hold onto it and see if I can work it out. The first RD600's out now seem like they could also benefit from a more mature BIOS, here's a review from VR-Zone which put together a decent review of it. http://www.newegg.com/Product/Product.asp?Item=N82E16813136032 At the moment the only other board I woudl want to play with is the P5B-Deluxe WIFI, it's had a bit more time to mature and seems to be a pretty decent setup. But like all new motherboards it also has it's fair share of problems! Well thanks again John for the info, much appreciated!